I have a 04 tzx200 that i want to install a 2nd front seat base for my butt seat since the recessed trolling motor tray is right up under me. I figure I'll have to install it in the forward storage compartment to move far enough back. Wondering which base unit to buy that would 1) allow me to reuse my existing slide-in seat pole. 2) support my enormous weight (250lbs) ? The existing seat pole has a smooth 3" shaft that just slides into the existing pedestal base but everything i've searched so far is either a locknpin or twist lock base. Any help would be appreciated.

Thanks